#include <iostream>  
using namespace std;
class Box
{
    
    public:
        double length; // Length of a box  
        double breadth; // Breadth of a box  
        double height; // Height of a box
};

int main()
{
    Box Box1;  // 声明对象Box1，类型为 Box
    Box Box2;  // 声明对象Box2，类型为 Box

    Box1.height = 5.0;
    Box1.length = 6.0;
    Box1.breadth = 7.0;

    cout<<Box1.height<<endl;  
    cout<<Box1.length<<endl;  
    cout<<Box1.breadth<<endl;  
    return 0;
}
